Loom eob weaving bags



UNITED STATES PATENT OFFICE.

WILLIAM TALBOT, OF SANFORD, MAINE.

LOOM FOR WEAVING BAGS.

Specification of Letters Patent No. 12,005, dated November 28, 1854.

T 0 all whom/1f may conce-m.'

Be it known that I, VILLIAM TALBOT, ot Sanford, in the county ot York and State ot Maine, have invented a new or Improved Loom tor Weaving Bags; and I do hereby declare that the same is tully described and represented in the tollowing speciiication and the accompanying drawings, letters, figures, and references thereot.

Ot the said drawings, Figure l, denotes a top view ot a loom trame having my im provenients applied to it, the weaving mechanism usually connected to said trame not being represented it not differing trom such as is in common use. Fig. 2, is a tront elevation. Fig. 3, is a rear elevation and Fig. 4, is a vertical and longitudinal section ot my invention and the loom trame to which it is applied. Fig. 5, is an inner side view ot the inner cam by which the lever ot the litter bar is operated, such grooved cam to be hereinafter described.

A horizontal trame, A, is arranged above the loom trame, B, and supported on two posts, C, D, extending upward trom the same.

On a rod or bar E projecting across the middle part ot the trame, A, a series ot litter hooks or contrivances is placed and made to rest. Each ot the said litter hooks being shaped as seen at F, in Fig. 4, wherein it is shown as biturcated or provided with an opening, a., tor the reception ot the rod, E. One ot the harnesses or heddles ot the loom is to be suspended to each ot the litters, F. It is raised at the proper time by the elevation ot its litter F, and is depressed by the action ot one ot a series ot springs, G, arranged as seen in the drawings: each ot the said springs being attached to the short arms ot one ot a series ot levers, G', G, whose longer arms, are connected to the heddles.

For raising the litters a transverse bar, H, is employed. It plays vertically in upright guides I, I, and 1s suspended trom one end ot a lever, K, which vibrates or plays vertically upon a tulcrum, L. The outer end ot the lever, K, has a connecting rod, M, `jointed to it; the said connecting rod at its lower end being jointed to a lever, N, which works up and down upon the tulcrum or pin, O, at one end ot it. The other end ot said lever is provided with a pin or stud which is made to extend into t-he groove, Q, ot a cam, R, fixed upon the loom shatt, S,

the term ot the groove ot such cam being exhibit-ed in Fig. 5, and it being so made as not only to arrest the motion ot the litters, and to produce the necessary upward and downward movement o-t the litter bar, H, but also to arrest all motion ot it and the litters tor a short period ot time, viz, While `the shuttle is being thrown through the shed or decussation ot the Warps, the litters being thus maintained stationary this short period ot time, so as to give the shuttle a tree passage across the race `beam of the loom and between the warps. In looms of this nat-ure it has been customary heretotore to provide the lever, N, with a slot and to make a crank pin trom a crank on the driving shatt to extend into such slot, the lever being raised and depressed by rotary motion imparted to the crank. In this manner a continuous motion of the lever and ot course the litter bar withoutany practical interval ot rest was produced consequently the warps were in movement during the passage ot the shuttle between them. By the employment ot a grooved cam or operating lever as herein before described, the groove ot the cam may be so formed as to `cause the warps to remain stationary in posit-ion during each throw ot the shuttle.

In connection with the litters I make use ot a perforated pattern cylinder, prism or rotary regulator pin wheel, T. It is arranged on the top ot the trame, A, as seen in the drawings, and fixed on a horizontal shatt V, made to revolve in suitable boxes or bearings. Each bar ot the prism or cy1` `inder T, has a series ot holes made in it,

in number corresponding to the numberot the litters, the said holes being the same., distance apart from center to center as are Into some one or more of theA the litters. holes ot each bar, pins, c, c, are screwed or affixed and made to project trom the external surtace ot the bar, these pins being" ar` `ranged in a proper manner tor the production on the loom ot a twilled or such other tabric as it may be desirable to have woven by it. The pattern prism or cylinder is adjusted so near to the litters as to cause `the pins, c, c, during its revolution to be moved litters as may project over it. y

. ment of the rocker lever such as will produce a regular intermittent rotary motion of the ratchet wheel and the pattern prism or cylinder. There is on the outside of the ratchet wheel a friction pulley, 7c, around which a cord, Z, is made to extend` such cord being fastened to a pin or projection, m.'

The object of the cord is to produce friction on the periphery of the pulley and so as to prevent back motion of the ratchet during` the backward movement of its pawl.

The above described apparatus is what is usually termed a jacquard apparatus, it being used in fancy weaving. In order to adapt it to the weaving of seamless bags and to close the warps together, or to weave them into one another so as to form what is termed the bottoming, I have added to it a secondary regulator pin wheel and sundry other mechanism for the purpose of operat ing the pin wheel or pattern prism. Bv the combined operation of both pin wheels or pattern prisms, the weaving of the body and the bottoming of the bag is carried on. The secondary regulator pin wheel or pattern cylinder being only brought into action when it is necessary tov form the bottoming. By a series of revolutions of the primary regulator pinvwheel the body of the bag is formed. Y

A11 endless pattern chain and a common pattern pinion as used in the ordinary j acquard machine could be employed to weave a bag, but it will be seen that in order to make such a bag of some two or three feet in length and to terminate it with a bottoming a chain of great and entirely of inconvenient length would have to be employed.

I therefore make use of the primary reguy lator pin wheel or pattern cylinder whichI cause to keep rotating as much as it may be necessary to form the bottom of the bag,l

and when such body has been completed I bring into action a secondary pattern cylin- 1 der and by means of it intermingle the warps so as to form the bottoming lof the bag. This secondary pattern cylinder is seen at A'. It is constructed like the primary cylinder and ysupported on a horizontal shaft,

it two ratchet wheels, C', D'; the outer one of which, C', has a row of, teeth extending entirely around its periphery. The inner lifter by its cam, O B'. l The said shaft carries or has xedupou ratchet has a simple arc of teeth made in its periphery as seen at, w.

The shaft, V, carries a crank pin, E', upon which is fixed an impelling pawl lever, F',

the upperfarm of which rests against the periphery of the ratchet wheel, C', while the lower arm hasa weight, G2, fixed upon it, such weightbeing suflicient to keep the upper arm of the pawl lever pressed in contact with the ratchet wheel. During each entire revolution ofthe shaft, V, or the primary pattern cylinder such a motion will be imparted to the pawl lever as to move the ratchet wheel C', the distance of one tooth forward. y

On the shaft-IB', there is a rocker H', which carries an impelling pawl, I', and is `moved by a pin, K', that works in va slot formed through one arm of the lever, said pin being extended from the lever, K. The vsaid impelling pawl, I',.rests upon the pe `riphery of the ratchet wheel, D', and by the `movement'of its rocker lever, H', and the lever, K, such pawl has a reciprocating `movement imparted to it.

Around a grooved pulleyL', aflixed to the inner side of the ratchet, D', a friction band M', is carried its object being to prevent back rotation of the ratchet. ASuch band, M', is attached to a studv N', of the framework. f

The bars of the secondary patternv cylinder or such of them as may be necessary should be provided with suitable pins toI op-r erate on the lifters while the said pattern cylinder is being put in movement. From `the above it will be seen that after quite a number of revolutions of the primary pattern cylinder, the secondarypattern cylinder will be made to operate against the lifters and will so operate until the impelling pawl, I', has moved entirely over against the short -arc of teeth ofthe ratchet, D', the weaving rbeing so arranged as to produce a lateral movement of the bar E, during a vertical movement of it. The object of these cam vgrooves is to producea movement of the ylower part of veach lifter nsimilar to that` whichV is given to't-he upper part of said The rearvarm yofthe rocker lever, Q', is

connected to the Afront arm oftheleVer, K, by a connecting rod, SI", which is jointed to 'bothlevers By such a connection of the two levers, it will be seen that their movements are always in opposite directions, so that while the lifter bar, I-I, is being elevated for the purpose of raising some one or more of the lifters, the bar, E, is being depressed for the purpose of lowering the remaining lifters and allowing their heddles to be depressed by the action of their springs G, G, hereinbefore described. In this way I open the shed of the warps by moving downward a portion of these warps, while at the same time I move upward another portion of them not producing the openings of the warps by the movement of only one portion of them as is the case in the ordinary Jacquard apparatus. By thus moving both portions of the warp one portion upward and another port-ion downward at the same time, the warps are relieved from much of that great strain which is produced on them when part of the lifters are suffered to remain stationary while the remainder is lifted high enough to raise the warps sufficiently to permit the passage of the shuttle between them and the rest of the warps. The object of giving a lateral movement to the lifters during their downward movements as above specified is to prevent their hooked teeth from coming in contact with and resting upon the pins of the primary pin wheel during the descent of the lifters.

I am aware that bags have been woven on what is termed a plain loom, the same having been effected in manner as exhibited in `the specification and drawings of the invention of Cyrus Baldwin patented in the United States, on the second day of December, 1851, but that a fancy or Jacquard weaving loom has been used for such purpose, I am not aware.

I do not claim a series of cams applied to the shaft of a loom and made by mechanism as described in the said Baldwins specification to operate the treadle levers of a system of heddles and so as to'weave a bag, but in combination with the Jacquard apparatus or series of lifters, their lifting mechanism and the rotary regulator pin wheel or its equivalent, I claim- The secondary regulator pin wheel or cylinder or its equivalent, and a mechanism substantially as described [or the equivalent therefor] for imparting to the secondary pin wheel or regulator its proper motions and intervals of rest, whereby by the combined action of both regulators the weaving of the body of the bag and the bottoming of it is carried on, as described; my machinery being adapted to the weaving of plain, twll or fancy work as occasion may require.

In testimony whereof I have hereunto set my signature this first day of May A D 1854.

WILLIAM TALBOT.

Witnesses:

SAMUEL THOMPSON, JOHN HEMINGWAY.

' led, 

